The final boss of
Double Dragon, Shuko
is the evil dictator of Bloody Town. Shuko is behind most of the nefarious
organizations and businesses in Bloody Town. He is a powerful master of the
magical fighting styles, Kobujutsu and Ninpoh.
Shuko was also the main antagonist in the Double Dragon movie. Duke
is his bodyguard and right-hand man.

He's not a
terrible boss design for Double Dragon, considering it was the mid 90's.
He looks a little bit like Dr. Strange,
but also kinda bland as a design. He also resembles Shang
Tsung a little bit though (shares the first 2 letters of his name, too).